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Self-assembled crystalline silicon carbide Y junctions by coalescence of nucleated iron catalysts
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10.1063/1.3456387
/content/aip/journal/apl/96/25/10.1063/1.3456387
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/25/10.1063/1.3456387
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Figures

Image of FIG. 1.
FIG. 1.

Morphologies and microstructures of the self-assembled crystalline SiC Y junctions. (a) SEM image of a SiC Y junction with two conical branches inclined with a relative separation angle of with respect to each other. The inset is a TEM image of a SiC Y junction with two inclined conical branches at an angle of . (b) TEM image of a SiC Y junction with two parallel branches; the inset shows the SAED pattern to confirm the same growth orientation of the branches and the stem. (c) Magnified TEM image where a diameter difference between the two branches is noted. (d) TEM image of the tip portion of the Y junction.

Image of FIG. 2.
FIG. 2.

Schematic diagram of the self-assembled crystalline SiC Y junctions created by the coalescence of two catalyst droplets: (a) Y junction with two parallel branches that merge into a single crystal stem that follows the original growth direction. (b) Y junction with two inclined branches to form a stem with a planar grain boundary along the stem center and corresponding change in the growth direction.

Image of FIG. 3.
FIG. 3.

Bright field (BF) TEM images of the interface between the catalysts and the nanocones [(a)–(c)]. (a) A BF TEM image of a typical SiC–Fe interface; the line highlights the facet feature of the catalyst particle. (b) “V”-shape junction with two branches (interfaces) at a relative separation angle of . (c) A BF TEM image of the stem portion of a SiC Y junction, showing the bicrystal structure of the stem and its catalyst droplet with a faceted interface, in which each facet is parallel to the {111} planes of the bicrystal; the line highlights the interface. HRTEM images of the crystalline SiC Y-junction branches along different projection directions (d) [211] and (e) [110]; the insets are the corresponding fast Fourier transformed images. (f) HRTEM image of the stem of a SiC Y junction with two inclined branches, showing a planar grain boundary along the center.

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/content/aip/journal/apl/96/25/10.1063/1.3456387
2010-06-23
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Self-assembled crystalline silicon carbide Y junctions by coalescence of nucleated iron catalysts
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/25/10.1063/1.3456387
10.1063/1.3456387
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